As of January 2015[update], the Gerontology Research Group had validated the longevity claims of 154 British citizens who have become "supercentenarians", attaining or surpassing 110 years of age. This number includes 23 emigrants who died in other nations.[1] The oldest known British person is Charlotte Hughes, who died in 1993 at the age of 115 years and 228 days.[1] The oldest man from the United Kingdom is Henry Allingham, who died in 2009 at the age of 113 years and 42 days.[1] As of 14 November 2024, the oldest person living in the United Kingdom is Ethel Caterham, born 21 August 1909, aged 115 years, 85 days.[2]